The Trijicon ACOG (Advanced Combat Optical Gunsight) is a fixed power, compactriflescope with an illuminated reticle pattern for use in bright to low/no light. The ACOG isdesigned to be extremely durable and reliable. Combining traditional, precise distancemarksmanship with CQB speed, many variants include a bullet drop compensated (BDC)reticle. Every feature of its design was chosen for a single purpose: to provide increasedhit potential in all lighting conditions.